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jump (one's) bones
slang To have sexual intercourse with someone, especially in an energetic or enthusiastic manner. Samantha was ogling the waiter and murmured crassly that she'd like to jump his bones. I could tell the two wanted to jump each other's bones, so I excused myself and left them to their own devices.
jump (someone's) bonesVulgar Slang
To have sexual intercourse with someone.